It would be greatness if this ever comes to fruition. I grew up in the 60's and remember when Congress cancelled funding for the Boeing SST. I was pretty bummed about it as a kid. I believe that materials technology and tech in general has progressed to the point where this is actually viable. Having endured many many international flights of 12-16 hours, cutting travel times by half, third or even a quarter would be a God-send.

I wish them success. It would be really cool if international flight times (North America to Europe, North America to Asia, Asia to Europe, etc) could be reduced to 6 hours or less. I understand the technical hurdles of designing, building and maintaining a SST, but you'd think by now, we'd have figured out how to do it cost effectively.